1234567891011121314151617181920212223242526272829303132 |
- // Copyright 2018 Daniel James.
- // Distributed under the Boost Software License, Version 1.0. (See accompanying
- // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- #include <boost/blank.hpp>
- #include <boost/static_assert.hpp>
- #include <cassert>
- #if !defined(BOOST_NO_IOSTREAM)
- #include <sstream>
- #endif
- int main() {
- BOOST_STATIC_ASSERT((boost::is_pod<boost::blank>::value));
- BOOST_STATIC_ASSERT((boost::is_empty<boost::blank>::value));
- BOOST_STATIC_ASSERT((boost::is_stateless<boost::blank>::value));
- boost::blank b1,b2;
- assert(b1 == b2);
- assert(b1 <= b2);
- assert(b1 >= b2);
- assert(!(b1 != b2));
- assert(!(b1 < b2));
- assert(!(b1 > b2));
- #if !defined(BOOST_NO_IOSTREAM)
- std::stringstream s;
- s << "(" << b1 << ")";
- assert(s.str() == "()");
- #endif
- }
|